Pole.



J. P. PETERSBN.

POLE, APPLICATION FILED DBO. 15, 1909.

Patented Dec. 20, l1910.

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J. P. PETERSN.

` POLE.

APPLIOATION FILED DEU. 15, 1909.

978,932. Patented Dec. 20, 1910.

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N A fmm/ BLM roR/vE ya t UNITED STATES PATENT OFFICE.

JENS PETER PETERSEN, OF CAPE GIRARDEAU, lIMIISSOURI.

POLE.

Specification of Letters Patent.

Patented Dee. 2o, 1am.

Application filed December 15, 1909. Serial No. 533,238.

To all whom 'it may concern:

Be it known that I, JENS PETER PETER- SEN, a subject of theling of Denmark, re-y siding at Cape Girardeamin the county of Cape'Girardeau, State of Missouri, have invented certain 'new and useful Improve-v ments in Poles, ,of ivliich'the following is a sutliciently full, `clear, and exact description, reference being had to `the accompanying drawing, foi-ming part of this specification.

My invention relates to improvements in y those poles which are particularly adapt-- able in the suspension of transmission cables or Wires.

The objects'of my invention are to pro-l -cal agencies and With as much ease as are the customary Wooden poles; and which presents foot-rests and'cross-arin standards Whose stability is fixed quite independently of the incasing cement or concrete.

Further desideratums Owill hereinafter be mentioned.

Figure 1 depicts the metal frame which is subsequently incased in cement; Fig. 2 a cross-section through the longitudinal extentfof Amy pole, illustrating the relation of the concrete shea-th to the longitudinal rods of the principal .frame and the jacket, the binders spacing said rods'and the prolongations of said binders being eliminated; Figs. 3,4, and 5 are cross-sections of the completed pole taken at the point opposite which they are disposed relative to Fig. 2; F ig. 6 depicts, on slightly enlarged scale, the manner of forming the foot-rests with which, in certain instances, are provided aymeans for erecting the pole; Fig. 7 illustrates, in enlarged detail, the construction of the crossarm standards; and Fig. 8 a slightinodification relative to' the formation of the footrests.

`Like numerals refer to like parts throughout the several views, the main or principal frame comprising four rectangular stayrods 1 which are corrugated and extend the entire length of the pole. Said stay-rods are maintained in their spaced relation, as

both diagrainiiiatically and in detail illus,- trated, by' a pluiality of What shall herein` after be referred to as metal bands or bind.Y

ers 2 which are ldisposed at regular intervals and firmly engage each of said stayrods as the latter'gradually converge from bottom-3 to top 4 of the pole.

Referring to Figs. l and 6 a peculiar feature of my device will be observed in lthe fact that integral ivith'ba'nds 2 are formed, simultaneously with their engagement with rods 1, erecting means 5 and foot-rests 6 byy entwining vthe opposite extremities o f bauds 2 as the saine meet. at point 7 and prolonging theni,'vvith a loop, for a suitable distance bevond the vertical plane of rods 1. Said foot-rests are not only supported' by the incasing cement sheath 8, but by resting squarely upon leg 2a of bands 2` so that should the cement warp,.c1'ack, or chip away about the point ofjemergence of said footrests therethrough, they AWouldvstill be heldk lirmly supported in 'the desired horizontal positioi by legs 2a. Reference being had to Fig. 8, it will be understood that the footrest prolongation of bands 2 may be coiled about leg 2a rather than rest thereupon. In

other constructions of concrete and `steel poles the foot-rests depend entirelyfortheir rigldity and horizontal maintenance .upon

the concrete in, which they are simply embedded, and it is Well known that frost or rapid and extreme changes of temperature attacking the slight annular apertures caused by the shrinkage of the plastic material 4about the passage of the. shank of the foot-rests therethrough, it follows that many ,y

of the latter members are soon dislodged from their originalposition and becomev either useless or dangerous. In contradis-` tinction,- my foot-rests depend least of all .upon the wall of concrete, and their support is primarily dependent upon the engagement of bands 2 with rods 1. Said' rods being corrugated, as aforesaid, and said bands being seated tightly in thesecorrugations (Fig. 6) slippage of the foot-rests is rendered practically im ossible. Thus at once I properly space an securely bind rods 1, and provide an erecting means and foot-l los rests integral with the binder, the latter being locked against movement despite future breakage of the cement.

Extending from a point approximately 3% feet below the ground line to a point approximately 5 feet thereabove, is a 'separate andl distinct, and separately constructed, jacket 9, comprising brace-rods 10 likewise corrugated and which may be round or rectangular. Between the situation of its binders 11 and'12 said rods of said jacket lie parallel to stayrods 1, but below the latter binder they are sprung or molded sharply' outward and continue to binder 13 at an ob-` lique angle to said stay-rods.v Preferably jacket 9 is not permanently engaged to rods 1 in order that it may be manufactured separately from the major metal frame, the process of construction simplified and the cost of the same reduced.

The cement or concrete sheath is applied to a depth suiicient to completely surround and cover stay-rods 1 throughout the greater extent of the pole, but at the point coincident with the extremity 10a of brace-rods 10 it juts sharply outward and its thickness thereafter doubled until opposite jacketbinder or band 12 when it is tripled, the thickness sharply decreasing to` that iirstI specified af ter the clothing of jacketbinder 13.

Cross-arms la are held by standards 15 which are prolongations of the top series of binders 15a, the latter members having, therefore,-a double function like binders 2 and eliminating those obvious defects .entailed where arm-holding devices are simply embedded in the cement and which have hereinbefore been mentioned. Regarding my provision for crossarm standards it will be appreciated that the greatand prolonged strain imposed upon the arms during a wind storm, or by reason of the weight'of snow and ice, is only indirectly imparted to the cement walls of the pole, and the metal of said standards being suitably7 resilient the lsame are not liable to snap from suddenly imposed stress which they directly distribute to the comparatively heavy stay-rods'l.

I deem it proper to -statethat I am aware of prior patents comprising a metal frame spaced apart with binders, andfincased in cement or concrete, but I am not aware of the use of corrugated metal serving to better ret-ain the cement'as it dries from its plastic condition and also serving to seat said binders, nor am I aware of any anticipationof certain other peculiar and desirable features hereinbefore described and now particularly covered in the following claims.

What I claim as new and desire to secure by LettersP-atent, is :a- 1 o 1. A metal core for posts or poles, comprising a principal frame, a secondary frame surrounding a section of saidprincipal frame, a series of binders spacing the members of said principal frame,'and a second and separate series of binders spacing the members of said secondary frame, certain of said binders of said principal frame prolonged beyond the vertical plane thereof, the portion of saids'econd'ary frame adjacent the ground line being flared outwardly while its remaining portion is disposed' substantially parallel said members of said principal frame, substantially g as and lfor the purposes described.

2. A metal core for posts or poles, com-J prising a principal frame of corrugated rods, a secondary frame surrounding a section of said principal frame, a series of binders spacing said rods and seated in the corrugations thereof, and a second and separate series of binders spacing the members of said secondary frame, certain of said binders of said rincipal frame )rolonged beyond the vertical plane thereof, the portion of said secondary frame adjacent the ground line being {iared outwardly while itsmr maining portion is disposed substantially parallel said rods, substantially as and for the purposes described.

3. In a pole or post construction, a comblnation binder and foot-rest consisting of a length of suitable bar metal whose center portion is engaged with and spaces a plurality of rods and whose free ends are brought together, entwined, and directed bef Ytween said rods `and prolonged, with a loop,

beyond the vertical plane'thereof, a section of said binder spacing said rods supporting Y i said prolongation, substantially as and for the purposes described.

J ENS PETER PETERSEN.

YVitnesses H; E. ALEXANDER, THOMAS F. LANE. 

